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Thread: KAC SR-15 upper on Vltor A5?

  1. #11
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    The benifit

    I have and SR-15 what is the benifit of running an A-5 buffer system

  2. #12
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    Quote Originally Posted by koolade1 View Post
    I have and SR-15 what is the benifit of running an A-5 buffer system
    Throw a BattleComp (or TTB) on it with an A5, and you've spoiled yourself on shot to shot recovery.

    I've only ran IMI brass ammo through mine set up as such, but boring reliability.
    عندما تصبح الأسلحة محظورة, قد يملكون حظرون عندهم فقط
    کله چی سلاح منع شوی دی، یوازي غلوونکۍ یی به درلود
    Semper Fi
    "Being able to do the basics, on demand, takes practice. " - Sinister

  3. #13
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    I just got my SR15 I bought from a member on the EE. It has a TTB, and the A5 so far it has been good.. I have had some hiccups with it, but the gun is still not broken in yet as it has only 340 rds through it. I'm heading back to the range tues to put another three or four hundred through of. Other wise I may customize the buffer weight

  4. #14
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    I ran my SR-15 with the standard RE/buffer and an AAC Blackout shooting Brown Bear and I never had a single problem, even when it was very dirty. Then I went to an A-5 RE with the lightest buffer and a Battlecomp. It started choking after 200 rounds (starting clean and wet with Slip2000 EWL), failures to strip a round mainly, short stroking. I changed back to the original RE/buffer (it still has the Battlecomp on it). Even though I left it dirty and pretty dry, from when it was jamming with the A-5, it ran like a raped ape yesterday at 35 degrees F with the Brown Bear.

    To be honest, I noticed very little difference in recoil between the A-5 and the stock KAC set-up, it already shoots super smooth stock with the BC. To me, it's not worth $3 a magazine more to have to burn brass case ammo.

    I also have an A-5 on my S&W 5.45 upper gun, with the 6 oz. buffer and it's been running flawlessy for a long time, but that upper is overgassed with the commie surplus ammo.

    IMHO, YMMV, My .02, Yada, yada, yada.
    Last edited by handyandy; 12-20-11 at 13:38. Reason: Edited for spelling

  5. #15
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    Just came back from the range... Brought the SR15 and my BCM 14.5 mid-length...I was shooting xm193, xm855, ae223 and a box of tula for the wussy ammo test...I brought the BCM so I could use the lower, and on one my friends who is new.to the AR world wanted to shoot a middy...


    So I continued to have short stroking issues with the SR15 and A5 combo, it would also fail to go into battery fully...The SR15 was brand new when I got it and I put the A5 on it prior to shooting it, stoopid me.. I swapped the SR15 upper over to the lower from the BCM rifle (standard RE and a H buffer standard spring) and the SR15 ran flawlessly.. it ran even tula, which I normally don't shoot because its too underpowered...


    So I am going to return the gun to the KAC specs and I'm sure its going to run fine... My question is do I try and change the buffer weight so the A5 works so I keep the benni's of that buffer system, or do I say eff it and just run it how I got it?

    I'm heading back to the range thurs, we will see how things go

  6. #16
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    since were talking about the A-5 i just bought a DD M4 upper and wanted to know what buffer weight and spring would work best in the DD M4 upper considering every one talking say this thing works better than an H buffer

  7. #17
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    If you end up back at the same weight as an H or H2 buffer, is there any measurable advantage to the A-5 system? I don't know, that's why I am asking.

    Quote Originally Posted by yhmspecter View Post
    Just came back from the range... Brought the SR15 and my BCM 14.5 mid-length...I was shooting xm193, xm855, ae223 and a box of tula for the wussy ammo test...I brought the BCM so I could use the lower, and on one my friends who is new.to the AR world wanted to shoot a middy...


    So I continued to have short stroking issues with the SR15 and A5 combo, it would also fail to go into battery fully...The SR15 was brand new when I got it and I put the A5 on it prior to shooting it, stoopid me.. I swapped the SR15 upper over to the lower from the BCM rifle (standard RE and a H buffer standard spring) and the SR15 ran flawlessly.. it ran even tula, which I normally don't shoot because its too underpowered...


    So I am going to return the gun to the KAC specs and I'm sure its going to run fine... My question is do I try and change the buffer weight so the A5 works so I keep the benni's of that buffer system, or do I say eff it and just run it how I got it?

    I'm heading back to the range thurs, we will see how things go

  8. #18
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    I now run a Noveske 14.5 mid length on a KAC SR15E3 lower with a Vltor A5 stock system.

    Havn't had a single issue thusfar and it continues to have a very healthy ejection even with steel case.

  9. #19
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    Necro post coming back from the dead... I'm strongly considering buying an SR-15 mod 2 upper if/when they become available, both in 16" and 11.5. Is anyone currently using an A5 with an SR-15 upper with success?

  10. #20
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    Quote Originally Posted by PatrioticDisorder View Post
    Necro post coming back from the dead... I'm strongly considering buying an SR-15 mod 2 upper if/when they become available, both in 16" and 11.5. Is anyone currently using an A5 with an SR-15 upper with success?
    Yes. I run a 16 Legacy and 11.5 both with the standard A5 buffer.

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